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 * The Original Code is mozilla.org code.
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#ifndef nsAppShell_h__
#define nsAppShell_h__

#include "nsCOMPtr.h"
#include "nsObject.h"
#include "nsIAppShell.h"
#include "nsIEventQueue.h"
#include "nsSwitchToUIThread.h"
#include <OS.h>
#include <List.h>

/**
 * Native BeOS Application shell wrapper
 */

class nsAppShell : public nsIAppShell
{
  public:
                            nsAppShell(); 
    virtual                 ~nsAppShell();

    NS_DECL_ISUPPORTS
    NS_DECL_NSIAPPSHELL

    virtual void*	GetNativeData(PRUint32 aDataType);

  private:
    nsCOMPtr<nsIEventQueue> mEventQueue;

    // event priorities
    enum {
      PRIORITY_TOP = 0,
      PRIORITY_SECOND,
      PRIORITY_THIRD,
      PRIORITY_NORMAL,
      PRIORITY_LOW,
      PRIORITY_LEVELS = 5
    };
    
    void ConsumeRedundantMouseMoveEvent(MethodInfo *pNewEventMInfo);
    void RetrieveAllEvents(bool blockable);
    int CountStoredEvents();
    void *GetNextEvent();
    
    port_id					eventport;
    sem_id					syncsem;
    BList events[PRIORITY_LEVELS];

    bool is_port_error;
};

#endif // nsAppShell_h__